Electric part handling device

Abstract

A tweezer-type hand-held device for installing and removing an electric part on and from a substrate. The device is provided with a pair of legs biased to close such that the part is held between the legs by the biasing force when the part is installed on the substrate. In an embodiment, one of the legs may be biased in two directions, i.e. in a direction to open and in another direction to close, and a switching member is disclosed to switch the biasing direction. The biasing member may include a spring commonly used for the biasing in the two directions. Manipulation portions are provided for open or close the legs against the force of the biasing member.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is based on Japanese patent application serial No. 2003-110146, filed in the Japan Patent Office on Apr. 15, 2003, the contents of which are hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention.[0003]The present invention relates to a device for handling an electric part such as resistor, capacitor and IC, and more particularly pertains to a hand-held tweezer type device for holding the electric part between a pair or legs. The device may be used for heating and reflowing solder at joints between the part and the substrate to solder or desolder the part and holding the part between a pair of legs to install or remove the part on or from a substrate. It is to be noted that the term electric part include not only ordinary electric part such as a resistor and capacitor but also electronic part such as transistor, diode and IC.[0004]2. General Background and State of the Art.[0005]Known ...

AI Technical Summary

Benefits of technology

[0009]It is another object of the present invention to provide a handheld tweezer-type device which enables delicate positioning of an electric part on a substrate upon installation of the part.

[0010]It is further object of the present invention to provide a handheld tweezer-type heating device which minimizes the dead angle when the part is carried to the installing position and installed there.

[0011]It is still another object of the present invention to provide a handheld device for installing and / or removing an electric part on or from a substrate and which enables an operator to hold the electric part without exerting large force to the device.

[0013]According to an aspect of an embodiment of the present invention, the first biasing member is arranged to exert such a biasing force that the part held between the contact pieces will not drop by its self-weight.

Problems solved by technology

The conventional device is inferior in efficiency of operation for mounting or installing an electric part, since it requires the operator to exert a large force for closing the legs against the force of the spring and holding the electric part between the tips while holding the device.

Especially, it is difficult for the operator to position and install a small electric part on a substrate since the operator is required to make delicate positioning of the part while holding the part with a large operating force.

In addition, as the conventional device has the legs with tips inwardly bend at their end portions, it causes an dead angle to obstruct view of the part and a part installing position when the part is carried to the installing position and installed there.

This inconvenience is significant especially when a small part is handled.

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